Wow. That wmctrl (and kciconsbox) is some serious coolness, especially for guys like me who insist on running non-Hildon apps all the time! And yes, forwarded windows (including Word) show up in the window list, and they can be fullscreened.

I just had exactly what you were wondering about -- I lost connection for a bit. My forwarded "gedit" window didn't refresh for a while, then Hildon said the window wasn't responding, so I hit cancel and waited. Sure enough, it responded and things went back to normal...